Hello,
I have problem with running spice simulation on my circuit:
https://easyeda.com/editor#id=0pjPJDVP7
Error: unknown subckt: xu4 d6_a xu4_2 c8_1 tl082
I have looked for other answers here on the forum, but none helped. I tried and found spice file for the TL082 (http://www.ti.com/product/tl082) but when I added it to the schematic, the spice instead said out of memory ...
Any ideas?
Thank you, Lukas
Hi Lukas,
You have placed two instances of the EasyEDA
parameterised 3 pin opamp
.When you place this in a schematic it calls up it's own spice model called
opamp3pEE
.This model has a number of parameters - based on values available from most device datasheets - that the user can adjust via the right hand Properties Panel to tailor the model to a wide range of devices.
However the
parameterised 3 pin opamp
is not suitable for use with either any other EasyEDA or 3rd party opamp models. Hence you cannot rename the symbol to try to call up any other model.It is worth noting that there is also an EasyEDA
parameterised 5 pin opamp
uses theopamp5pEE
model which has supply pins and some additional parameters but is otherwise used in the same way as theparameterised 3 pin opamp
and also is not suitable for use with either any other EasyEDA or 3rd party opamp models.First though, you must appreciate that even if you have a model for a TL082 or a TL084, this will almost certainly be a model for only a single opamp and will be configured for use with a 5 pin opamp symbol and not a dual or quad opamp symbol.
5pin Operational Amplifier
This calls up the
TL081EE
model. This is a version of theopamp5pEE
with fixed parameters tailored for the TL081.5pin Operational Amplifier
The symbol then calls up the model you have pasted into the schematic.
For more information, please see:
and;
in:
This recent forum post may also be helpful:
Does that help?
Questions? Just ask.